Sanitary Cleaning Equipment

Abstract

To provide a sanitary washing device that can wash an outer peripheral surface of a nozzle well.SOLUTION: A sanitary washing device controls a nozzle driving device so that a nozzle moves back and forth in a first movement pattern while discharging washing water from a nozzle washing tool when washing the nozzle while seating is detected by a seating sensor. On the other hand, the sanitary washing device controls the nozzle driving device so as to move the nozzle forward and backward in a second movement pattern while discharging the washing water from the nozzle washing tool when washing the nozzle while seating is not detected by the seating sensor.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a sanitary washing device. [Background technology]

[0002] A conventional sanitary washing device of this type includes a nozzle having a water discharge portion at its tip, a nozzle motor for moving the nozzle back and forth, a nozzle cleaner (nozzle cleaning chamber) fixed to a base and housing the nozzle tip (water discharge portion) when the nozzle is housed in a casing, and a seating detection sensor for detecting when a user sits on the toilet seat (see, for example, Patent Document 1). In this device, when the seating sensor detects a user sitting on the toilet seat and the user operates a flush switch, the device performs a spout flush by spraying water from the nozzle discharge portion housed in the casing, and then advances the nozzle to a cleaning position. When the nozzle advances, water is sprayed from the nozzle discharge portion in the nozzle cleaning chamber to clean the outer peripheral surface of the nozzle, performing a body flush. When the nozzle advances to the cleaning position, water is sprayed from the nozzle discharge portion to begin washing the private parts. When the user operates the stop switch, the nozzle is retracted into the casing, and water is sprayed from the water outlet of the nozzle cleaning chamber while the nozzle is retracted, thereby cleaning the body. When the nozzle is housed in the casing, water is sprayed from the water outlet of the nozzle housed in the casing, thereby cleaning the water outlet. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-68087 Summary of the Invention [Problem to be solved by the invention]

[0004] The sanitary washing device described above can wash the outer peripheral surface of the nozzle (body washing) by spraying water from the water discharge part of the nozzle cleaner when the nozzle moves back and forth before and after washing the private parts. On the other hand, it is desirable that the nozzle be moved back and forth as fast as possible to reduce the waiting time involved in washing the private parts, but if the nozzle is moved back and forth too quickly, the nozzle will quickly pass the point where water is sprayed from the nozzle cleaner, and there is a risk that dirt on the nozzle will not be sufficiently removed.

[0005] A primary object of the present invention is to provide a sanitary washing device that can effectively wash the outer peripheral surface of a nozzle. [Means for solving the problem]

[0006] The sanitary washing device of the present invention employs the following means to achieve the above-mentioned main object.

[0007] The sanitary washing device of the present invention comprises: a nozzle for local washing that sprays washing water onto local areas of the human body; a nozzle driving device that moves the nozzle back and forth; a nozzle cleaner having a water discharger with a fixed water discharge location, and discharging wash water from the water discharger to clean the nozzle; a seating sensor that detects whether a person is sitting on the toilet seat; a control device that, when cleaning the nozzle in a state where seating is detected by the seating sensor, performs first nozzle cleaning control to control the nozzle drive device so that the nozzle moves back and forth in a first movement pattern while cleaning water is discharged from the nozzle cleaner, and, when cleaning the nozzle in a state where seating is not detected by the seating sensor, performs second nozzle cleaning control to control the nozzle drive device so that the nozzle moves back and forth in a movement pattern that at least a part of which includes a second movement pattern that takes longer to move than the first movement pattern while cleaning water is discharged from the nozzle cleaner; The gist of the project is to provide the following:

[0008] In the sanitary washing device of the present invention, when the nozzle is cleaned while a seating sensor detects seating, first nozzle cleaning control is performed, which controls the nozzle drive device to move the nozzle forward and backward in a first movement pattern while discharging cleaning water from a nozzle cleaner with a fixed water discharge point. By moving the nozzle forward and backward at a relatively fast speed in the first movement pattern, it is possible to clean the nozzle while reducing the waiting time associated with private parts cleaning. On the other hand, when the nozzle is cleaned while a seating sensor does not detect seating, second nozzle cleaning control is performed, which controls the nozzle drive device to move the nozzle forward and backward in a movement pattern that includes at least a part of the second movement pattern while discharging cleaning water from the nozzle cleaner. Because the second movement pattern requires more time to move than the first movement pattern, it is possible to increase the amount of cleaning water discharged from the nozzle cleaner to the nozzle, making it easier to remove dirt from the nozzle.

[0009] In the sanitary washing device of the present invention, the second movement pattern may include a stop period during which the movement of the nozzle is temporarily stopped, and the first movement pattern may include no stop period. This allows for easy control to easily clean the nozzle. It also prevents excessive load from being placed on the motor that drives the nozzle.

[0010] In the sanitary washing device of the present invention, the second movement pattern may be a pattern in which the nozzle moves at a slower speed than in the first movement pattern. In this way, the nozzle passes slowly past the water discharge point of the nozzle cleaner, making it easier to remove dirt from the nozzle.

[0011] Furthermore, in the sanitary washing device of the present invention, the second nozzle washing control is executed when a predetermined execution condition is met when no seating is detected by the seating sensor, and the predetermined execution condition may be met when a predetermined operation switch other than the operation switch that instructs the local washing is operated, when a predetermined time has passed after the local washing has been performed, or when a predetermined timing has arrived. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is an external view of a toilet seat device including a sanitary washing device of this embodiment. [Figure 2] FIG. 1 is a schematic diagram of a sanitary washing device. [Figure 3] FIG. 2 is an external view of a nozzle unit. [Figure 4] 10 is a flowchart illustrating an example of a nozzle cleaning process. [Figure 5] 10A and 10B are explanatory diagrams showing the state of change over time of the nozzle position and the switching valve position during non-seated nozzle cleaning in this embodiment. [Figure 6] 10A and 10B are explanatory diagrams showing changes over time in the nozzle position and the switching valve position in a comparative example. [Figure 7] 10A and 10B are explanatory diagrams showing how nozzle positions and switching valve positions change over time in another embodiment. [Figure 8] 10A and 10B are explanatory diagrams showing how nozzle positions and switching valve positions change over time in another embodiment. [Figure 9] 10A and 10B are explanatory diagrams showing how nozzle positions and switching valve positions change over time in another embodiment. [Figure 10] 10A and 10B are explanatory diagrams showing how nozzle positions and switching valve positions change over time in another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.

[0014] Fig. 1 is an external view of a toilet seat apparatus including a sanitary washing device of this embodiment, Fig. 2 is a schematic configuration diagram of the sanitary washing device, and Fig. 3 is an external view of a nozzle unit. The toilet seat apparatus 10 of this embodiment is attached to a Western-style toilet 1, and as shown in Fig. 1, comprises a toilet seat apparatus main body 12, a toilet seat 14 supported so as to be openable and closable relative to the toilet seat apparatus main body 12, a toilet lid 16 supported so as to be openable and closable relative to the toilet seat apparatus main body 12, an operation panel 18, and a seating sensor 19.

[0015] As shown in Figure 2, the toilet seat device main body 12 is equipped with a water passage 21 connected to a water supply pipe (tap piping), a water stop valve 22, a pressure reducing valve 23 that reduces the water supply pressure, a heat exchange unit 24, a pulsating pump 25 that adjusts the cleaning strength, a vacuum breaker 26, a nozzle unit 30, and a sanitary washing device 20 that includes a control device 50, all of which are housed in a resin housing. The heat exchange unit 24 has a water tank, a heater 24a, a switch (FET), and a temperature sensor (thermistor), and heats the water in the water tank to generate hot water by driving the switch to control the flow of electricity to the heater 24a.

[0016] As shown in Figures 2 and 3, the nozzle unit 30 includes a nozzle case 31, a posterior washing nozzle 32 and a bidet washing nozzle 33 as genital washing nozzles that spray washing water onto the genital areas of the human body to cleanse those areas, a posterior washing nozzle drive device 34 that drives the posterior washing nozzle 32, a bidet washing nozzle drive device 35 that drives the bidet washing nozzle 33, a posterior nozzle washer 41, a bidet nozzle washer 45, and a switching valve 36.

[0017] The posterior washing nozzle 32 is a cylindrical body supported relative to the nozzle case 31 so as to be movable back and forth in the axial direction, and has a water flow path extending axially therein and ejection holes 32o that communicate with the water flow path and open on the outer circumferential surface. Although not shown, the posterior washing nozzle drive device 34 has a motor, a pinion gear that is rotationally driven by the motor, and a rack (flexible rack) that meshes with the pinion gear and has one end connected to the posterior washing nozzle 32. The posterior washing nozzle drive device 34 can advance the posterior washing nozzle 32 to a washing position where it protrudes from the nozzle case 31 by rotating the motor in one direction to push out the rack. On the other hand, by rotating the motor in the other direction (reverse direction) to retract the rack, the posterior washing nozzle 32 can be retracted to a stored position where it is stored in the nozzle case 31.

[0018] The bidet cleansing nozzle 33 is installed alongside the posterior cleansing nozzle 32 laterally. Like the posterior cleansing nozzle 32, the bidet cleansing nozzle 33 is a cylindrical body supported so as to be freely movable axially back and forth relative to the nozzle case 31. It has a water flow path extending axially therein and a jetting hole (not shown) that communicates with the water flow path and opens on its outer circumferential surface. The bidet cleansing nozzle drive device 35, like the posterior cleansing nozzle drive device 34, includes a motor, a pinion gear rotated by the motor, and a rack (flexible rack) that meshes with the pinion gear and has one end connected to the bidet cleansing nozzle 33. The bidet cleansing nozzle drive device 35 can advance the bidet cleansing nozzle 33 to a cleaning position where it protrudes from the nozzle case 31 by rotating the motor in one direction to push out the rack. Meanwhile, the bidet cleansing nozzle 33 can be retracted to a storage position where it is housed in the nozzle case 31 by rotating the motor in the other direction (reverse direction) to retract the rack.

[0019] 3, the posterior nozzle washer 41 is installed on the posterior washing nozzle 32 side on the front surface of the nozzle case 31, and includes a water inlet 42 and a water discharge hole 43 that communicates with the water inlet 42 via a water passage. The water discharge hole 43 opens toward the front in the axial direction of the posterior washing nozzle 32, and by supplying wash water to the water inlet 42, the outer peripheral surface of the posterior washing nozzle 32 can be cleaned with the wash water discharged from the water discharge hole 43.

[0020] 3, the bidet nozzle washer 45 is installed on the bidet nozzle 33 side on the front surface of the nozzle case 31, and includes a water inlet 46 and a water outlet 47 that communicates with the water inlet 46 via a water passage. The water outlet 47 opens toward the front in the axial direction of the bidet nozzle 33, and by supplying cleansing water to the water inlet 46, the outer peripheral surface of the bidet nozzle 33 can be cleaned with the cleansing water discharged from the water outlet 47.

[0021] Although not shown, the switching valve 36 is configured as a rotary valve equipped with a fixed valve disc, a movable valve disc, and a motor that rotates the movable valve disc relative to the fixed valve disc. A cleansing water passage is formed in the fixed valve disc and the movable valve disc, and by rotating the movable valve disc relative to the fixed valve disc using the motor, the switching valve 36 selectively switches the supply destination of cleansing water discharged from the pulsation pump 25 between the posterior cleansing nozzle 32, the bidet cleansing nozzle 33, the posterior nozzle washer 41, and the bidet nozzle washer 45, and adjusts the amount of cleansing water supplied to the posterior cleansing nozzle 32 and the bidet cleansing nozzle 33.

[0022] 2, the operation panel 18 is provided with a posterior cleansing switch 18a for instructing the start of posterior cleansing, a bidet cleansing switch 18b for instructing the start of bidet cleansing, a stop switch 18c for instructing the stop of genital cleansing (posterior cleansing, bidet cleansing), a cleansing strength setting switch for setting the cleansing strength, a water temperature setting switch for setting the temperature of the cleansing water, a nozzle cleansing switch 18d for instructing the cleansing of the genital cleansing nozzles (posterior cleansing nozzle 32, bidet cleansing nozzle 33), etc. The posterior cleansing switch 18a and the bidet cleansing switch 18b are also referred to as genital cleansing switches.

[0023] The control device 50 is configured as a microprocessor centered around a CPU 52, and as shown in Fig. 2, in addition to the CPU 52, it is equipped with a ROM 54, a RAM 56, a timer 58, and input / output ports (not shown). Operation signals from the operation panel 18 and detection signals from the seating sensor 19 that detects when a user sits on the toilet seat 12 are input to the control device 50 via the input port. The control device 50 outputs a drive signal to the stop valve 22, a control signal to the heat exchange unit 24 (heater switch), a drive signal to the pulsating pump 25, a drive signal to the posterior washing nozzle drive device 34, a drive signal to the bidet washing nozzle drive device 35, a drive signal to the switching valve 36, and the like via the output port.

[0024] Next, the operation of the sanitary washing device 20 configured as described above will be explained, in particular the operation when the nozzle washer 40 is used to wash the private parts washing nozzle in conjunction with private parts washing, and the operation when the nozzle washer 40 is used to wash the private parts washing nozzle without private parts washing. Figure 4 is a flowchart showing an example of the nozzle washing process executed by the CPU 52 of the control device 50.

[0025] When the nozzle cleaning process is executed, the CPU 52 of the control device 50 first determines whether the user is seated on the toilet seat 14 based on the detection signal from the seating sensor 19 (step S100). If it is determined that the user is seated on the toilet seat 14, it determines whether the private parts cleansing switch (the rear cleansing switch 18a or the bidet cleansing switch 18b) has been operated (step S110). If it is determined that the private parts cleansing switch has not been operated, the nozzle cleaning process ends without performing nozzle cleaning. On the other hand, if it is determined that the private parts cleansing switch has been operated, nozzle cleaning (seated nozzle cleaning) is performed by discharging cleansing water from the corresponding nozzle cleaner toward the target nozzle while moving the target nozzle back and forth according to the first movement pattern (step S120), and the nozzle cleaning process ends. The first movement pattern is a pattern for moving the target nozzle as quickly as possible to reduce the waiting time associated with private parts cleansing, and is determined by the motor specifications, etc. Here, when the posterior cleansing switch 18a is operated as the genital cleansing switch, nozzle cleansing while seated is performed by switching the supply destination of cleansing water by the switching valve 36 to the posterior nozzle washer 41, discharging cleansing water from the water discharge hole 43 of the posterior nozzle washer 41, and moving the posterior cleansing nozzle 32 back and forth as the target nozzle. On the other hand, when the bidet cleansing switch 18b is operated as the genital cleansing switch, nozzle cleansing while seated is performed by switching the supply destination of cleansing water by the switching valve 36 to the bidet nozzle washer 45, discharging cleansing water from the water discharge hole 47 of the bidet nozzle washer 45, and moving the bidet cleansing nozzle 33 back and forth as the target nozzle. This allows the outer peripheral surface (body) to be cleansed from the tip to the base end of the target nozzle before and after genital cleansing.

[0026] If it is determined in step S100 that the user is not seated on the toilet seat 14, the following are determined: whether the nozzle cleaning switch 18d has been operated (step S130); whether a predetermined time has passed since the previous private parts cleaning (posterior cleaning or bidet cleaning) was performed (step S140); and whether a set time predetermined by the user has arrived (step S150). Steps S130 to S150 are execution conditions for performing nozzle cleaning (non-seated nozzle cleaning) when the user is not seated on the toilet seat 14. If the determinations in all steps S130 to S150 are negative, it is determined that the execution conditions for non-seated nozzle cleaning are not met, and the nozzle cleaning process ends without performing nozzle cleaning. On the other hand, if any of the determinations in steps S130 to S150 is affirmative, it is determined that the conditions for performing non-seated nozzle cleaning are met, and the two nozzles (the rear washing nozzle 32 and the bidet washing nozzle 33) are moved forward and backward one by one in sequence using the second movement pattern, and cleaning water is discharged from the corresponding nozzle cleaners to perform nozzle cleaning (non-seated nozzle cleaning) (step S160), and the nozzle cleaning process ends. The second movement pattern is defined as a pattern that requires more time for the target nozzles to move forward and backward than the first movement pattern. In this embodiment, the second movement pattern is performed by moving the target nozzles forward and backward while repeatedly moving and stopping between the storage position and the cleaning position. This increases the amount of cleaning water discharged per unit area of ​​the target nozzle, making it possible to more reliably remove dirt from the target nozzles.

[0027] Fig. 5 is an explanatory diagram showing how the nozzle position and switching valve position change over time in non-seated nozzle washing of this embodiment, and Fig. 6 is an explanatory diagram showing how the nozzle position and switching valve position change over time in a comparative example. As shown in Fig. 5, in non-seated nozzle washing of this embodiment, when the nozzle washing switch 18d is operated (time t1) while the seating sensor 19 has not detected that the user is seated on the toilet seat 14, the switching valve 36 switches the supply destination of wash water to the posterior wash (posterior wash nozzle 32), and wash water is sprayed from the spray holes 32o of the posterior wash nozzle 32 while the nozzle 32 is housed in the nozzle case 31. As a result, the spray holes 32o and the surrounding area are cleaned by the wash water that passes through the spray holes 32o of the posterior wash nozzle 32 and the wash water that bounces back inside the nozzle case 31. After a predetermined time has passed, the switching valve 36 switches the destination of the cleansing water supply to the posterior nozzle cleaning (posterior nozzle washer 41), and the posterior washing nozzle 32 is moved forward in the second movement pattern (time t2). As described above, the second movement pattern is a movement pattern in which the posterior washing nozzle 32 is moved forward from the storage position to the cleaning position, repeatedly moving and stopping. As a result, the posterior washing nozzle 32 passes the water discharge point of the posterior nozzle washer 41 during its forward movement in the second movement pattern, and is cleaned from the tip end to the base end. After a predetermined time has passed since the posterior washing nozzle 32 reached the cleaning position (times t3 and t4), the posterior washing nozzle 32 is moved backward in the second movement pattern. As a result, the posterior washing nozzle 32 passes the water discharge point of the posterior nozzle washer 41 during its backward movement in the second movement pattern, and is cleaned from the base end to the tip end. When the posterior washing nozzle 32 retracts to the stored position (time t5), the switching valve 36 switches the supply destination of the washing water to the posterior washing (posterior washing nozzle 32), and the washing water is sprayed from the spray hole 32o of the posterior washing nozzle 32 while the posterior washing nozzle 32 is stored in the nozzle case 31.

[0028] When the posterior cleansing nozzle 32 is completely cleansed (time t6), the switching valve 36 switches the cleansing water supply destination to the bidet cleansing (bidet cleansing nozzle 33), and cleansing water is sprayed from the nozzle holes of the bidet cleansing nozzle 33 while the bidet cleansing nozzle 33 is housed in the nozzle case 31. As a result, the nozzle holes and their surroundings are cleansed by the cleansing water passing through the nozzle holes of the bidet cleansing nozzle 33 and the cleansing water that bounces back inside the nozzle case 31. After a predetermined time has elapsed, the switching valve 36 switches the cleansing water supply destination to the bidet nozzle cleansing (bidet nozzle washer 45), and the bidet cleansing nozzle 33 is moved forward in the second movement pattern (time t7). As a result, the bidet cleansing nozzle 33 passes the water discharge point of the bidet nozzle washer 45 as it moves forward in the second movement pattern, and is cleansed from the tip to the base end. When a predetermined time has elapsed since the bidet cleansing nozzle 33 reached the cleansing position (times t8 and t9), the bidet cleansing nozzle 33 is moved backward in the second movement pattern. As a result, the bidet nozzle 32 is cleaned from the base end to the tip end by moving backward in the second movement pattern and passing the water discharge point of the bidet nozzle cleaner 45. When the bidet nozzle 33 moves backward to the housed position (time t10), the switching valve 36 switches the supply destination of cleansing water to the bidet cleansing (bidet nozzle 33), and cleansing water is sprayed from the nozzle hole of the bidet nozzle 33 while the bidet nozzle 33 is housed in the nozzle case 31.

[0029] In this way, in non-seated nozzle cleaning of this embodiment, when the target nozzle is moved back and forth to clean it while cleaning water is discharged from the corresponding nozzle cleaner, the movement of the target nozzle is performed using the second movement pattern, which takes longer to move than in seated nozzle cleaning. This makes it possible to discharge a larger amount of cleaning water per unit area of ​​the target nozzle, making it possible to more reliably remove dirt from the target nozzle.

[0030] In contrast, in the non-seated nozzle cleaning of the comparative example, when the target nozzle is moved back and forth to clean it while cleaning water is being discharged from the corresponding nozzle cleaner, the movement of the target nozzle is performed in the same first movement pattern as in the seated nozzle cleaning, as shown in Figure 6. In this comparative example, the target nozzle quickly passes the water discharge point of the corresponding nozzle cleaner, which may result in the target nozzle not being able to be sufficiently cleaned.

[0031] According to the sanitary washing device of this embodiment described above, when performing non-seated nozzle washing to wash the target nozzles (posterior washing nozzle 32, bidet washing nozzle 33) when no seating is detected by the seating sensor 19, the target nozzles are moved back and forth while washing water is discharged from the corresponding nozzle cleaner, and the movement of the target nozzles is performed in the second movement pattern, which takes longer to move than in seated nozzle washing. This makes it possible to increase the amount of wash water discharged from the nozzle cleaner to the target nozzles, making it easier to clean the target nozzles.

[0032] In the above-described embodiment, in the non-seated nozzle cleaning, the target nozzle (the rear cleaning nozzle 32, the bidet cleaning nozzle 33) moves back and forth between the retracted position and the cleaning position, alternately moving and stopping, but as shown in Fig. 7, a stop period may be provided between the retracted position and the intermediate position, but no stop period may be provided between the intermediate position and the cleaning position (advanced position). As a result, of the entire length of the target nozzle, the tip portion slowly passes the water discharge point where cleansing water is discharged from the corresponding nozzle cleaner, while the base portion quickly passes the water discharge point. This makes it possible to thoroughly clean the tip portion of the target nozzle while preventing the time required for nozzle cleaning from becoming too long.

[0033] In the above-described embodiment, in the non-seated nozzle cleaning, the target nozzles (the rear cleaning nozzle 32 and the bidet cleaning nozzle 33) move in the second movement pattern in both forward and backward movements. However, as shown in FIG. 8, the forward movement may be performed in the second movement pattern and the backward movement in the first movement pattern, or as shown in FIG. 9, the forward movement may be performed in the first movement pattern and the backward movement in the second movement pattern.

[0034] In the above-described embodiment, the target nozzle is moved back and forth from the storage position to the cleaning position during non-seated nozzle cleaning, but the target nozzle may be moved back and forth so as to turn back just before the cleaning position. In non-seated nozzle cleaning, the target nozzle may be moved forward and backward multiple times.

[0035] In the above-described embodiment, the second movement pattern includes a stop period in which the target nozzle is temporarily stopped, but as shown in FIG. 10, the movement speed of the target nozzle may be slower than that of the first movement pattern without providing a stop period.

[0036] In the above-described embodiment, when the user is not seated on the toilet seat 14, the conditions for executing non-seated nozzle cleaning are that the nozzle cleaning switch 18d is operated, a predetermined time has passed since a local cleaning (buttocks cleaning or bidet cleaning) was performed, or a predetermined set time has arrived, and the nozzle cleaning is executed when the user is not seated. However, some of these execution conditions may be omitted.

[0037] In the above-described embodiment, the private parts washing nozzle includes two nozzles, the rear washing nozzle 32 and the bidet washing nozzle 33, but the number of nozzles may be one, or three or more.

[0038] In the above-described embodiment, the posterior nozzle washer 41 and the bidet nozzle washer 45 (multiple nozzle washer) each have independent water flow paths (water inlets 42, 46), but they may also be configured as a single nozzle washer with a common water flow path.

[0039] The correspondence between the main elements of the embodiment and the main elements of the invention described in the "Means for Solving the Problem" section will be explained below. In the embodiment, the posterior washing nozzle 32 and the bidet washing nozzle 33 correspond to the "nozzle," the posterior washing nozzle drive device 34 and the bidet washing nozzle drive device 35 correspond to the "nozzle drive device," the posterior nozzle washer 41 and the bidet nozzle washer 45 correspond to the "nozzle washer," the seating sensor 19 corresponds to the "seating sensor," and the control device 50 corresponds to the "control device."

[0040] The correspondence between the main elements of the embodiments and the main elements of the invention described in the "Means for Solving the Problem" section does not limit the elements of the invention described in the "Means for Solving the Problem" section, since the embodiments are examples for specifically explaining the mode for implementing the invention described in the "Means for Solving the Problem" section. In other words, the interpretation of the invention described in the "Means for Solving the Problem" section should be based on the description in that section, and the embodiments are merely specific examples of the invention described in the "Means for Solving the Problem" section.

[0041] The above describes the form for carrying out the present invention using an embodiment, but the present invention is not limited to such an embodiment in any way, and it goes without saying that the present invention can be carried out in various forms within the scope that does not deviate from the gist of the present invention. [Industrial Applicability]

[0042] The present invention can be used in the sanitary washing device manufacturing industry, etc. [Explanation of symbols]

[0043] 1 Western-style toilet, 10 toilet seat device, 12 toilet seat device body, 14 toilet seat, 16 toilet lid, 18 operation panel, 18a rear wash switch, 18b bidet wash switch, 18c stop switch, 18d nozzle wash switch, 19 seating sensor, 20 sanitary wash device, 21 waterway, 22 stop valve, 23 pressure reducing valve, 24 heat exchange unit, 24a heater, 25 pulsation pump, 26 vacuum breaker, 30 nozzle unit, 31 nozzle case, 32 rear wash nozzle, 32o jet hole, 33 bidet wash nozzle, 34 rear wash nozzle drive device, 35 bidet wash nozzle drive device, 36 switching valve, 41 rear nozzle washer, 42 water inlet, 43 water outlet, 45 bidet nozzle washer, 46 water inlet, 47 Water outlet, 50 control device, 52 CPU, 54 ROM, 56 RAM, 58 timer.

Claims

1. A nozzle for washing a local part of a human body by spraying washing water thereon; a nozzle driving device that moves the nozzle forward and backward; a nozzle cleaner having a water discharger with a fixed water discharge location and configured to discharge cleaning water from the water discharger to clean the nozzle; A seating sensor that detects whether a person is sitting on the toilet seat; a control device which performs a first nozzle cleaning control for controlling the nozzle drive device so that the nozzle moves back and forth in a first movement pattern while cleaning water is discharged from the nozzle cleaner when cleaning of the nozzle is performed in a state where seating is detected by the seating sensor, and which performs a second nozzle cleaning control for controlling the nozzle drive device so that the nozzle moves back and forth in a movement pattern that includes at least a part of a second movement pattern that takes longer to move than the first movement pattern while cleaning water is discharged from the nozzle cleaner when cleaning of the nozzle is performed in a state where seating is not detected by the seating sensor; Equipped with the second movement pattern is a pattern in which the nozzle is moved in one direction while repeatedly moving in the one direction and pausing, the first movement pattern is a pattern in which the nozzle is moved in one direction without the pause; Sanitary cleaning equipment.

2. The sanitary washing device according to claim 1, The nozzle has a cleaning water ejection hole at a tip portion, the control device, in the second nozzle cleaning control, moves the nozzle in the second movement pattern while a tip portion of the nozzle passes a water discharge point of the nozzle cleaner, and moves the nozzle in the first movement pattern while a base portion of the nozzle passes a water discharge point of the nozzle cleaner. Sanitary cleaning equipment.

3. A nozzle for washing a local part of a human body by spraying washing water thereon; a nozzle driving device that moves the nozzle forward and backward; a nozzle cleaner having a water discharger with a fixed water discharge location and configured to discharge cleaning water from the water discharger to clean the nozzle; A seating sensor that detects whether a person is sitting on the toilet seat; a control device which performs a first nozzle cleaning control for controlling the nozzle drive device so that the nozzle moves back and forth in a first movement pattern while cleaning water is discharged from the nozzle cleaner when cleaning of the nozzle is performed in a state where seating is detected by the seating sensor, and which performs a second nozzle cleaning control for controlling the nozzle drive device so that the nozzle moves back and forth in a movement pattern that includes at least a part of a second movement pattern that takes longer to move than the first movement pattern while cleaning water is discharged from the nozzle cleaner when cleaning of the nozzle is performed in a state where seating is not detected by the seating sensor; Equipped with The nozzle has a cleaning water ejection hole at a tip portion, the control device, in the second nozzle cleaning control, moves the nozzle in the second movement pattern while a tip portion of the nozzle passes a water discharge point of the nozzle cleaner, and moves the nozzle in the first movement pattern while a base portion of the nozzle passes a water discharge point of the nozzle cleaner. Sanitary cleaning equipment.

4. A sanitary washing device according to any one of claims 1 to 3, the second nozzle cleaning control is executed when a predetermined execution condition is satisfied in a state where no seating is detected by the seating sensor, The predetermined execution condition is met when a predetermined operation switch other than the operation switch for instructing the local cleaning is operated, when a predetermined time has elapsed after the local cleaning is performed, or when a predetermined timing has arrived. Sanitary cleaning equipment.

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